ChemicalBook > CAS DataBase List > 1,3-DICHLOROTETRAMETHYLDISILOXANE

1,3-DICHLOROTETRAMETHYLDISILOXANE

Product Name
1,3-DICHLOROTETRAMETHYLDISILOXANE
CAS No.
2401-73-2
Chemical Name
1,3-DICHLOROTETRAMETHYLDISILOXANE
Synonyms
1,3-DICHLORO-1,1,3,3-TETRAMETHYLDISILOXANE;DK230;Oxybis(dimethylchlorosilane);Oxybis(chlorodimethylsilane);bis(chlorodimethylsilyl)ether;Bis(chlorodimethylsilyl) oxide;Sym-dichlorotetramethyldisiloxane;1,3-DICHLOROTETRAMETHYLDISILOXANE;Tetramethyl-1,3-dichlorodisiloxane;1,3-DICHLORO-1,1,3,3-TETRAMETHYLDISI
CBNumber
CB2297482
Molecular Formula
C4H12Cl2OSi2
Formula Weight
203.21
MOL File
2401-73-2.mol
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1,3-DICHLOROTETRAMETHYLDISILOXANE Property

Melting point:
-37 °C
Boiling point:
138 °C (lit.)
Density 
1.039 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.407(lit.)
Flash point:
15 °C
storage temp. 
Flammables area
form 
liquid
Specific Gravity
1.038
color 
Colorless to Almost colorless
Water Solubility 
Reacts with water.
Sensitive 
Moisture Sensitive
Hydrolytic Sensitivity
8: reacts rapidly with moisture, water, protic solvents
BRN 
1741218
InChIKey
DMEXFOUCEOWRGD-UHFFFAOYSA-N
CAS DataBase Reference
2401-73-2(CAS DataBase Reference)
EPA Substance Registry System
Disiloxane, 1,3-dichloro-1,1,3,3-tetramethyl- (2401-73-2)
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Safety

Hazard Codes 
F,C
Risk Statements 
11-34
Safety Statements 
16-26-27-36/37/39-45
RIDADR 
UN 2985 3/PG 2
WGK Germany 
3
F 
10-21
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29319090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H225Highly Flammable liquid and vapour

H314Causes severe skin burns and eye damage

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
465585
Product name
1,3-Dichloro-1,1,3,3-tetramethyldisiloxane
Purity
97%
Packaging
25ml
Price
$236
Updated
2023/06/20
TCI Chemical
Product number
D2334
Product name
1,3-Dichloro-1,1,3,3-tetramethyldisiloxane
Purity
>97.0%(GC)
Packaging
5g
Price
$63
Updated
2025/07/31
TCI Chemical
Product number
D2334
Product name
1,3-Dichloro-1,1,3,3-tetramethyldisiloxane
Purity
>97.0%(GC)
Packaging
25g
Price
$166
Updated
2025/07/31
TRC
Product number
D438910
Product name
1,3-Dichloro-1,1,3,3-tetramethyldisiloxane
Packaging
500mg
Price
$75
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD11165
Product name
1,3-Dichlorotetramethyldisiloxane
Packaging
25g
Price
$79
Updated
2021/12/16
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1,3-DICHLOROTETRAMETHYLDISILOXANE Chemical Properties,Usage,Production

Chemical Properties

clear colorless liquid

Uses

1,3-Dichlorotetramethyldisiloxane is used to produce 1,1,3,3-tetramethyl-disiloxane-1,3-diol. It is also used as Chemical Additives. Pharmaceutical intermediates.

Synthesis

3277-26-7

2401-73-2

General procedure: The chlorination reaction needs to be carried out in THF to ensure that all Si-H bonds are chlorinated, using TCCA as the chlorinating agent (molar ratio 1:1, TCCA:siloxane). This was done as follows: 1,1,3,3-tetramethyldisiloxane and THF (ratio 20 ml THF/g siloxane) were added to the reaction flask and the mixture was cooled to -20 °C. TCCA was added in batches with vigorous stirring, and after the addition of TCCA, stirring was continued for 15 min, after which the cooling bath was removed and the reaction mixture was allowed to warm slowly to room temperature. It should be noted that the chain length of the siloxane, the type of substituent and the position of the Si-H bond may affect the method of isolation and characterization of the subsequent products. Upon completion of the reaction, THF and unreacted TCCA should be removed immediately to avoid denaturation of the products during storage.

References

[1] Journal of Organometallic Chemistry, 2007, vol. 692, # 10, p. 1892 - 1897
[2] Journal of Organometallic Chemistry, 2018, vol. 875, p. 1 - 4
[3] Journal of the Chemical Society [Section] A: Inorganic, Physical, Theoretical, 1970, p. 1641 - 1642

1,3-DICHLOROTETRAMETHYLDISILOXANE Preparation Products And Raw materials

Raw materials

Preparation Products

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1,3-DICHLOROTETRAMETHYLDISILOXANE Suppliers

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View Lastest Price from 1,3-DICHLOROTETRAMETHYLDISILOXANE manufacturers

Shanghai Daken Advanced Materials Co.,Ltd
Product
1,3-DICHLOROTETRAMETHYLDISILOXANE 2401-73-2
Price
US $0.00/KG
Min. Order
1KG
Purity
98.00%
Supply Ability
1000KG /month
Release date
2021-11-26
Career Henan Chemical Co
Product
1,3-DICHLOROTETRAMETHYLDISILOXANE 2401-73-2
Price
US $2.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
customise
Release date
2018-08-10

2401-73-2, 1,3-DICHLOROTETRAMETHYLDISILOXANERelated Search:

1,3-DI-N-OCTYLTETRAMETHYLDISILAZANE 1,3-DIMETHYLTETRAMETHOXYDISILOXANE 1,3-DIBUTYL-1,1,3,3-TETRAMETHYLDISILAZANE 1,3-DI-N-PROPYL-1,1,3,3-TETRAMETHYLDISILAZANE 1,3-DIETHYLTETRAMETHYLDISILOXANE 1,1,3,3-tetrachloro-1,3-dimethyldisiloxane 1,1,3,3-TETRAPHENYL-1,3-DIMETHYLDISILOXANE 1,1,3,5,5-Pentaphenyl-1,3,5-trimethyltrisiloxane TETRAETHYLCYCLOTETRASILOXANE 1,3-DICHLORO-1,3-DIMETHYL-1,3-DIPHENYLDISILOXANE 1,3-DICHLOROTETRAPHENYLDISILOXANE 1,1,3,3-TETRAMETHYLDISILOXANE Chlorodimethylsilane 1,1,3,3-Tetramethyldisiloxane 1,3-DICHLOROTETRAMETHYLDISILOXANE 1,3-DICHLORO-1,1,3,3-TETRAISOPROPYLDISILOXANE 1,1,3,3-TETRACYCLOPENTYLDICHLORODISILOXANE 1,3-DIVINYL-1,3-DIMETHYL-1,3-DICHLORODISILOXANE

  • 1,3-DICHLOROTETRAMETHYLDISILOXANE 96%
  • bis(chlorodimethylsilyl)ether
  • Disiloxane, 1,3-dichloro-1,1,3,3-tetramethyl-
  • disiloxane,1,3-dichloro-1,1,3,3-tetramethyl-
  • Sym-dichlorotetramethyldisiloxane
  • 1,1,3,3-Tetramethyl-1,3-dichlorodisiloxane
  • 1,3-Dichloro-1,1,3,3-tetramethylpropanedisiloxane
  • Oxybis(chlorodimethylsilane)
  • Oxybis(dimethylchlorosilane)
  • 1,3-Dichloro-1,1,3,3-tetramethyldisiloxane,96%
  • Bis(chlorodimethylsilyl) oxide
  • Tetramethyl-1,3-dichlorodisiloxane
  • chloro-[chloro(dimethyl)silyl]oxy-dimethylsilane
  • 1,3-DICHLOROTETRAMETHYLDISILOXANE
  • 1,3-DICHLORO-1,1,3,3-TETRAMETHYLDISILOXANE
  • 1,3-dichloro-1,1,3,3-tetramethyl-disiloxan
  • 1,3-DICHLORO-1,1,3,3-TETRAMETHYLDISI
  • 1,3-Dichloro-1,1,3,3-tetramethyldisiloxane&gt
  • DK230
  • 2401-73-2
  • CH32SiClOSiClCH32
  • C4H12Cl2OSi2
  • CH32SiClOClSiCH32
  • Protection and Derivatization
  • Protecting and Derivatizing Reagents
  • Synthetic Reagents
  • Silicon-Based
  • Si-Cl Compounds
  • Siloxanes
  • Si (Classes of Silicon Compounds)
  • Si-O Compounds
  • Monochlorosilanes
  • Protection & Derivatization Reagents (for Synthesis)
  • Monochlorosilanes
  • Protection & Derivatization Reagents (for Synthesis)
  • Si (Classes of Silicon Compounds)
  • Si-Cl Compounds
  • Siloxanes
  • Si-O Compounds
  • Synthetic Organic Chemistry
  • Protecting and Derivatizing Reagents
  • Protection and Derivatization
  • Silicon-Based